28148204527 has 4 divisors (see below), whose sum is σ = 28272205656. Its totient is φ = 28024203400.

The previous prime is 28148204519. The next prime is 28148204533. The reversal of 28148204527 is 72540284182.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28148204527 - 2³ = 28148204519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28148204927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62000224 + ... + 62000677.

It is an arithmetic number, because the mean of its divisors is an integer number (7068051414).

Almost surely, 2^28148204527 is an apocalyptic number.

28148204527 is a deficient number, since it is larger than the sum of its proper divisors (124001129).

28148204527 is a wasteful number, since it uses less digits than its factorization.

28148204527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124001128.

The product of its (nonzero) digits is 286720, while the sum is 43.

The spelling of 28148204527 in words is "twenty-eight billion, one hundred forty-eight million, two hundred four thousand, five hundred twenty-seven".